[Chap. XLVII 



THE ALGAE 



629 



Fig 287 Forms of brown algae (figures not drawn to scale). Genera repre- 

 sented: (A) Fuciis, (B) Postelsia, (C) Ectocarpm, (D and G) Laminaria, (E) 

 Chorda, and (F) Nereocystis. 



